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JES3 to JES2 Migration Considerations by Tom Wasik, John Unterholzner, John A. O'Leary, Brad Habbershaw, Bruce Dennis, Karan Singh, Frank Kyne

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How JES2 works
When making a migration decision from JES3, you will want to know what JES2 provides. This chapter is intended for people who are familiar with JES3 and want to understand how JES2 works. It helps you to understand situations where the same function has a different name in JES2 than in JES3.
In many ways, JES2 provides many of the same functions that JES3 does. However, it generally does them in a completely different way. These differences arose over the years, partly because of different functional requirements, but also because ...

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